Home / 5,190.96-7,162.25-3,173.86

Finding the Fourth Proportional to 5,190.96, 7,162.25 and 3,173.86

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Solution

The fourth proportional to 5,190.96, 7,162.25 and 3,173.86 is: 4,379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.96 : 7,162.25 = 3,173.86 : x
  2. Step 2: Convert to fraction form
    5,190.96/7,162.25 = 3,173.86/x
  3. Step 3: Cross multiply
    5,190.96x = 7,162.25 × 3,173.86
  4. Step 4: Simplify right side
    5,190.96x = 22,731,978.79
  5. Step 5: Solve for x
    x = 22,731,978.79/5,190.96
  6. Step 6: Final answer
    x = 4,379.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.